These precision-cut steel gears are designed for use inside power tool gearboxes to transmit torque from the motor to the working spindle. The set typically includes a small pinion gear and a larger driven gear, ensuring smooth power transfer, controlled speed reduction, and high torque output. Made from hardened alloy steel for durability, wear resistance, and long service life. Commonly used in angle grinders, cutters, and similar rotary power tools.